More than cars are perched atop the red and blue ramps at MSP Airport.

This massive steel structure is generating electricity.

Dennis Probst/Airport EVP: "This is for the moment at least the largest solar array, photovoltaic array in the state of Minnesota."

Dennis Probst is Executive Vice President of the Airports Commission - which just flipped the switch on this 25 million dollar solar farm.

Dennis Probst/Airport EVP: "When we started talking of doing a solar project out here, we wanted to do an iconic project, something that was meaningful and that would be very visible to the public in terms of our commitment to it."

There are 8,700 of these individual solar panels collecting enough energy to supply roughly 20 percent of MSP's demand.

Generating three megawatts of power means less greenhouse gasses from coal burning power plants.

It's like removing 14-hundred passengers cars off the roads for a year.